Core Network Engineer

Sofia - Bulgaria

Monthly Salary: Not Disclosed

Posted on: 06-11-2025

Vacancies: 1 Vacancy

Job Summary

About Huawei

Huawei is a leading global provider of information and communications technology (ICT) infrastructure and smart devices. With integrated solutions across four key domains telecom networks IT smart devices and cloud services we are committed to bringing digital to every person home and organization for a fully connected intelligent world.

At Huawei innovation focuses on customer needs. We invest heavily in basic research concentrating on technological breakthroughs that drive the world forward. With approximately 208000 employees we operate in more than 170 countries and regions.

Huaweis end-to-end portfolio of products solutions and services are both competitive and secure. Through open collaboration with ecosystem partners we create lasting value for our customers working to empower people enrich home life and inspire innovation in organizations of all shapes and sizes.

Job Title:

Core Network Engineer

Job Location:

Sofia Bulgaria

Main Responsibilities:

1. Take the responsibility of TL/TE. Be responsible for the delivery of engineering projects of CS IMS NGN HSS PCRF PS NFV IT IOT and big data products. Serve as delivery engineers to support project delivery and solve technical problems of various products in the engineering.

2. Undertake maintenance and fault analysis of the preceding products support routine maintenance fault location troubleshooting and network optimization of the mobile core network and improve network performance.

3. Transfer product technical knowledge to global core network technical support engineers through training and on-site support.

4. Support technical expansion and delivery of new product items such as NFV and IOT.

Requirements:

Business skill requirements: One or more of the following:

1. Be able to independently complete the design change and delivery of technical solutions for core network projects of medium complexity or above.

2. As a key element engineer be able to independently maintain the core network with a medium complexity or above and independently monitor alarms locate faults and locate complex faults.

3. Be able to guide new employees to complete project delivery and network maintenance.

4. Be able to communicate with junior-and mid-level customers about effective technical solutions project plans and progress.

Professional knowledge requirements: One or more of the following:

1. Have a good understanding of the network structure for the SS7 signaling network. Master the basic principles and applications of MTP3/M3UA/SCCP/GT. Understand the basic principles and applications of Diameter.

2. Have a good understanding of MAP key messages and service processes. Have a good command of basic mobile communication processes (such as call short message and location update). Understand key messages in the process. Have a good command of the three main procedures of data service attach /PDP activation and/RAU.

3. Have general knowledge of basic VPN concepts. Understand the working principles of OSPF and VRRP. Know how to configure OSPF and VRRP on the core network. Understand the working principle of the firewall.

4. Have a good command of the basic maintenance commands of the operating system (such as UNIX/Linux). Master the basic maintenance commands of the database (such as ORACLE/SYBASE/PT/SQL Server).

5. Have a good command of the CS IMS NGN HSS PCRF PS NFV IT IOT and big data products of any vendor.

What We Offer:

We offer you an exciting professional career in one of the leading and fastest growing multinational telecommunication companies challenging work and a competitive salary package. Personal development is ensured through many training opportunities across Europe.

Important: To be considered for this role applicants must be eligible to work and live in the job location.

Privacy Statement:

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About HuaweiHuawei is a leading global provider of information and communications technology (ICT) infrastructure and smart devices. With integrated solutions across four key domains telecom networks IT smart devices and cloud services we are committed to bringing digital to every person home and ...